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Medulloblastoma - demographics
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Commonest pediatric malignant brain tumor
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15-20% of all pediatric brain tumors
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80% <15 years old, 20% <2 years old
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40% of pediatric posterior fossa tumors
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Slightly more common in boys
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Mean age at diagnosis – 7yrs; peaks at 1-5 yrs and 6-9yrs